Decorative concrete unit



FIG. 1 is front view of a decorative concrete unit illustrating my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a rear view thereof.

The broken lines in the drawings represent unclaimed subject matter. 

CLAIM The ornamental design for a decorative concrete unit, as shown and described. 